Color coordination of red gradients involves selecting shades, tones, and tints of red that harmonize well together. This can include using analogous colors (colors next to each other on the color wheel), complementary colors (colors opposite each other), or monochromatic shades. The goal is to create a visually appealing and cohesive color scheme. In design, red gradients can evoke emotions like passion or warmth, and are often used in branding, websites, and visual arts.